[U-Boot] [PATCH] CFI: geometry reversal for STMicro M29W320DT

[Richard Retanubun]

Follow up to the flash_fixup_stm to fix geometry reversal
on STMicro M29W320ET flash chip. The M29W320DT has 4 erase region.

Signed-off-by: Richard Retanubun <RichardRetanubun at RuggedCom.com>

---
My baseline is 2009.03-rc1. If there are STMicro/Numonyx guys on
this mailing list, can you help provide a more 'generic' way of
detection? this way the exception list does not have to grow a lot.

  drivers/mtd/cfi_flash.c |    5 +++--
  1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index a66feac..391d169 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -1806,8 +1806,9 @@ static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
  	if (qry->num_erase_regions > 1) {
  		/* reverse geometry if top boot part */
  		if (info->cfi_version < 0x3131) {
-			/* CFI < 1.1, guess by device id (only M29W320ET now) */
-			if (info->device_id == 0x2256) {
+			/* CFI < 1.1, guess by device id (M29W320{DT,ET} only) */
+			if (info->device_id == 0x22CA ||
+			    info->device_id == 0x2256) {
  				cfi_reverse_geometry(qry);
  			}
  		}
-- 
1.5.6.5